Giangregorio, Patrizia http://orcid.org/0000-0003-1064-4494
Norman, Anita J.
Davoli, Francesca
Spong, Göran
Article History
Received: 20 June 2017
Accepted: 23 February 2018
First Online: 27 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.